How to get embedded document in mongodb? [duplicate]

问题

This question already has answers here:

Retrieve only the queried element in an object array in MongoDB collection (11 answers)

Closed 3 months ago.

I tried to get embedded documents in the table using mongodb but its not working.

dev table

[{
"id":1,
"data":[{"id":1,"name":true},{"id":2,"name":true},{"id":3,"name":false},{"id":1,"name":true}]
}]

Query

db.dev,find({data.name:true})

Excepted output

[{
"id":1,
"data":[{"id":1,"name":true},{"id":2,"name":true}]
}]

I got Output

[{
"id":1,
"data":[{"id":1,"name":true},{"id":2,"name":true},{"id":3,"name":"false"},{"id":1,"name":true}]
}]

How to write the query to match the expected output. can give sample code

回答1:

Try out this solution

let whereClause = { "data.name":true };
    await db.dev.find(whereClause);

来源：https://stackoverflow.com/questions/58815958/how-to-get-embedded-document-in-mongodb